CINXE.COM

<!DOCTYPE html><html lang="en-US"><head><title>Just a moment...</title><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta http-equiv="X-UA-Compatible" content="IE=Edge"><meta name="robots" content="noindex,nofollow"><meta name="viewport" content="width=device-width,initial-scale=1"><style>*{box-sizing:border-box;margin:0;padding:0}html{line-height:1.15;-webkit-text-size-adjust:100%;color:#313131;font-family:system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,Noto Sans,sans-serif,Apple Color Emoji,Segoe UI Emoji,Segoe UI Symbol,Noto Color Emoji}body{display:flex;flex-direction:column;height:100vh;min-height:100vh}.main-content{margin:8rem auto;max-width:60rem;padding-left:1.5rem}@media (width <= 720px){.main-content{margin-top:4rem}}.h2{font-size:1.5rem;font-weight:500;line-height:2.25rem}@media (width <= 720px){.h2{font-size:1.25rem;line-height:1.5rem}}#challenge-error-text{background-image:url(data:image/svg+xml;base64,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);background-repeat:no-repeat;background-size:contain;padding-left:34px}@media (prefers-color-scheme:dark){body{background-color:#222;color:#d9d9d9}}</style><meta http-equiv="refresh" content="390"></head><body class="no-js"><div class="main-wrapper" role="main"><div class="main-content"><noscript><div class="h2"><span id="challenge-error-text">Enable JavaScript and cookies to continue</span></div></noscript></div></div><script>(function(){window._cf_chl_opt={cvId: '3',cZone: "publications.waset.org",cType: 'managed',cRay: '91c73140b9ac9e1e',cH: 'OCiNQf9KS1LWRIVGmvCyJAIDwbMlihbhFrKEu1tvedQ-1741320094-1.2.1.1-Kduk3FTGCJNsh_Ln_7cvSag7QJ4uRiO9AjDw.BOdjLbNGX5Vwjpnz.fba1b4YFNb',cUPMDTk: "\/abstracts\/search?q=nilpotent%20orbits&page=2&__cf_chl_tk=lKYg4hWgFctfEv_groWc0qiEaVR6ugNZxBFKEutcUi0-1741320094-1.0.1.1-UZOtsfFUIvCObDIvb_oOkf7h7usvWbrlKI9TcCNrwIg",cFPWv: 'g',cITimeS: '1741320094',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/abstracts\/search?q=nilpotent%20orbits&page=2&__cf_chl_f_tk=lKYg4hWgFctfEv_groWc0qiEaVR6ugNZxBFKEutcUi0-1741320094-1.0.1.1-UZOtsfFUIvCObDIvb_oOkf7h7usvWbrlKI9TcCNrwIg",md: "YoZf9MfbqjT2qz8LnOwxhc70SehCH394LB9vDgGCqgk-1741320094-1.2.1.1-6S2jOqbGUK.e5DdCxVc9_tMg.KiGzVw3uXBSQ_zM8ZGk2sni.ndM_A8tH4Gkq0vZ7yzIEZ4Pz3ybgcpIx0_LSBugat4fnNu0IUJJG4smK2XjGGewCkk88fAq8Ef_YHRt04hVQq7gJj1neumewEV6n3oWwhnMcDQtcZRjemR3_sAJMiNGWUxE12dhsTUUb31mqPLdATqroFSgCrEzi6xaPbzDVmvPxnZVVkMUfUHnSNnm6VUrYaUEOtyhMSTvFD6K8tORWHgKk0Rcs73ciOqYhZxt6WIJhJvmK1k6vkhtSAH86ARMOmX.bvYmFGmNjeIjT2DYxNKCNTpiyeLRLr3uGmU4Jd8doSCO6PJXEc9q2l4CiMjmZBpPnAPuQz3MkCMnyPwEsHiX.gnQJVrBmV4OEyJI_JBAbK5su8KiU_NjFb2DrW2MJ4YYjbTD59aSW7zpIM_v6jr0uKXn1x0zuQhAqH5lMHJ4YxZ1AX5T0rRGba4co2PW2dVk.CLn_RyGR9V7SqVy_uZ3nI1rvfkXY77F27SZ8xt7qVDa_hAyLVR9OIaBb3eliiZHluv6M8lQjbgtzevr1omXnWMpOfxJJrbJFbhsCqV89rWVbKBKCwagH1AQ6OR89EQDctaNVg8lJB92RtXBmrDAE4nqJycfUPuixVdyOqTscBPCmuRCFBFjDCqVqBgPMJMCF3SfnHmAq2HH9H4AScOfq7Sxr0BIemH_ukKwR_L83nvenZtDLtK_sAcVMERYBTE0iGXQ5SeCqTYPjHEwbNq.Vt.vXp.IUmgKH7lZ8ptenQN8jdXpGTYIHhATwuspjYNwWEKTp3ELXapVNkSSGtfcxPBXweGaDfaDwdJ20u.UhY339KrWXfxcldSm76vX_hoVgH54yFMUm5B.AhHeImDQffob3dHQnpJQ_n2R6hf0bcyewkOTW_ddGiZE59WRYFXDcvpN1VuPWqeHareVO0D8ymwT6NUaxHAMjpDiseqXwW5rSH85QA5qD4Y8NIHM8uzON4nv7ubSJafHLhioJ_OGdGeLImLF95MvrFmGw7fAY6TfY0jRDIA1mGOH1pDDdDJh2tnda2ZSyQH6DjK8VIe_jQCLrFcl2lK1724x4e87_RHazbQ3scaNT_JZPqza0Xyp_Y59C7SZqr1uTHWY_tKYjVvZ4AIR2Mgjk4RmHaXNt_VY.Lo1M6uVbdz860vROWSibxKr9OYoZDFwdUL5VjKOVi6Wdy8Azgj813PDQNUoRCtpBQoZle6YEtzU9NQNJv7QMUi.DzQBdrkUXetwSIfZychBiiQYunfBxLFP5fx30efblKUnGIgstkI",mdrd: "cC22ApyLiY0zjmvRnnN0ulN96jymxGI.xZ2wDkYQVGo-1741320094-1.2.1.1-0KgpO3xGtf8cqaLG7ajT5w7MuCnmNQ0YdKf0D686MhWjHRfgeSJPz_GcI0NGoDOjcWPdthhQmuQlZ5nLScfFiEjYatTDE_KbSSnYU.CksIZsrqdBojt4rBViU6.cUq9dile6RhHZ9nznk5Z4.edVo1Y4NSBXZecIVpxntHVRAdIaZ3CfpTyk0lXBZ39oJnifW4YMSL08.cF8Xuti0aQa2OVx3wsfcuJv0fsytH1c_T0B2sf0qKJGy0SMra5fZaXe1ywG3ufcBm3qzfjrcjE7Ks_4u5khMGXSudvE5NFkLQ4dKMwAre1v3Dw6oG6OZ.y53MqaW_c4dLPI3IlFe3Zw4fPq26bQHVfmhlX7V5KO3lbqmLf7a2di7ib_FHdcTnq.NNlqNNc_y5RjDGmM3a_y4XZyRZUnh0TgHJdKKYgkLxqqcUPd0Ws5YxLx0dtnoQaoKSqWcLdFMkwXKRg4yvvozyTpOw.XtIn8yOmoFzt8GetT03GagPK1NBPr_LfOj4y2qmzTSpsOeIuJFpW2eg6EUS.MhaoWLAeCBspPa_br3z4wHZmPg1Y2Tan.PZ5LERpRbFH9HonVJEKQrACiklX4rH.UwY2o6KZtI_FjmCDt.F0ABPzOfATdtB4c0iK3nlL4V9Wf2ycwgoZfw3VPtVwhBBA5.2IIs956yZCzH6jLTx6RX4f1UIjn3pVJg7r3.kV3ykQ0oOERTxri10QyoscibEGo6G.0jdKlAzdtet7R5o3tepA02qn6dEWM4Y33o4CiNP4asLaIiuKD7N15yZXmHow38tJWrxBvlyWp3EAwyiORhEgkpeAJSZxvhc5TxX1S7voDtdnTuweIoy2ebuccZwp79Rs7.DLvO2n6vb89oTDHF_m.lYhmLNJkUE8wKI0af27BlMyHTzu6TQrTpPicsq.lDpFGgcOg3H0xaj6nnnPoSLobJMGBQCmpPGyKf03DWK8tRTAjdmegPyXqJnoWiPNhhOvIzd6xeLtQq3iJLs_oLQBgOj67xgo2dh8G1MBgYK3ARoFPhY5yhBCXBpTpGQVC7FaFv64iUGIvyVU2L6bCJMu4kHsTlAlZbGF8WrV1vyvdfS33Qs5KxokgJ0YcLkSwM0R.A9yaX7kqUgyu5R9YBRKH.75LxljFq0Dc2KiI_SUp.nj37WK.AFZBBzXiGfwJVoyBIVlHDIIRoYw32XrTuMJGiNVKIrqWBdZSkwZJvMkH5QoXVRwzp_7v4ssGyf5MhH1LG3yqvt1DoOc3GdPjpfhRRqucU6RVFqCbdpS63wQY_p8kEzWspNkhT6ztgLczy1.h7tk2tkvGiNv1h4WdKWPxmrDDhnZm_T.uAPtKKgc5eUa7oO502GmOkPtYnI1lDvHpgnU.tXMJhvB0KlgNyXqmoVsK_rztF8.LR4i4wC.oUcmn.zrxlcaejmgTc5TV5wludG90QlR0EABN0HecVtGxsD5Oslw3wgys1nRVidUNFk5GkKbsiOcKd53F_2OJH1p1hXo0Stc1gf.JBggBHpjiSCjx.8ZM7WcFNCyvGCodaIN.9C29wDuQ9utJiowcMhi5rqthHFnzaN0m14ptamr.78uCaEhuJk6l_SEhm_QcZzYXVqhxU2TkETh1eqlB5hvTnOo8MTcuTyVoKrVJB6j60K7Z4oIg.O_WFgtsFm6YsnRxN7BS1TPmyhc.WQaCXUFtjYgvjEI__SUTLGBiPAWPJ9LnFan94TetuG.M5RsRIlARkQGxgbrZUgHB2ZwUL1ECd_MV3wRZZEPdeCtp9nOBk0_LS7WyqRZT7mzIRm9uzR.._7mbwpr_Gu8GSoreffCoM0dQsvvkPFEuG1Ie5TpRycIeTfdL9DQs31krcykdsahT_cpMMt5qsGhvJpmMEowpv40q8QshFey8HlIz23RArQvrAd_jaOvK3j6A6pTnAIXQW6NvKZs6rihAFfE7Nr.pjKqt1OFmfHuseQgGUwW71vxdN_SDFmuGubdA"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=91c73140b9ac9e1e';window._cf_chl_opt.cOgUHash = location.hash === '' && location.href.indexOf('#') !== -1 ? '#' : location.hash;window._cf_chl_opt.cOgUQuery = location.search === '' && location.href.slice(0, location.href.length - window._cf_chl_opt.cOgUHash.length).indexOf('?') !== -1 ? '?' : location.search;if (window.history && window.history.replaceState) {var ogU = location.pathname + window._cf_chl_opt.cOgUQuery + window._cf_chl_opt.cOgUHash;history.replaceState(null, null, "\/abstracts\/search?q=nilpotent%20orbits&page=2&__cf_chl_rt_tk=lKYg4hWgFctfEv_groWc0qiEaVR6ugNZxBFKEutcUi0-1741320094-1.0.1.1-UZOtsfFUIvCObDIvb_oOkf7h7usvWbrlKI9TcCNrwIg" + window._cf_chl_opt.cOgUHash);cpo.onload = function() {history.replaceState(null, null, ogU);}}document.getElementsByTagName('head')[0].appendChild(cpo);}());</script></body></html>